BOSTON — A so-called “super PAC” supporting Democratic candidate for governor Steve Grossman has listed the name of his mother Shirley Grossman as one of its top contributors.

The updated ad by the Mass Forward Independent Expenditure PAC was released Monday with the names of the PAC’s top five donors, including Richard Slifka, Paul Egerman, Ken Novack, and John McQuillan Jr.

The decision to add the names came after Gov. Deval Patrick, with little fanfare, signed into law on Friday a bill requiring all ads by independent expenditure political action committees — also known as “super PACs” —include the names of their top five contributors who’ve given more than $5,000.

The pro-Grossman Mass Forward Independent Expenditure PAC began running the television ad before the bill was signed. The ad faults Coakley for not supporting a proposal to limit gun purchases in Massachusetts to one per person per month.

The Mass Forward PAC lists Newton residents Barry and Eleanor White as chair and co-chair of the committee. Grossman also lives in Newton.

A statement from the group said it moved quickly to bring the ad into compliance with the new law. The group says it is “almost entirely funded by Massachusetts residents who believe that Steve Grossman is the best progressive choice for governor.”

Coakley’s gubernatorial campaign earlier Monday faulted the PAC for violating the law before the updated version was released.

“Massachusetts voters have already made it clear that SuperPACs have no place in our elections,” Coakley campaign manager Tim Foley said in a written statement Monday. “We hope that Steve Grossman joins Martha in recognizing that and will disavow the SuperPAC’s ads.”

The state Office of Campaign and Political Finance website includes no information about how much each donor has contributed to the PAC.

The PAC reported spending $153,000 to support Grossman’s campaign last week. That’s on top of another $250,000 the PAC reported initially spending on the television ad. So far, the PAC has spent more than $415,000 to help Grossman’s campaign.

Grossman on Monday said he supports the new law and said “any donors should fully disclose.” He also said that while he had “no control” over the ad it is entirely factual.

“It basically says that Martha Coakley supports the position taken by the National Rifle Association — unlimited gun purchases — and I don’t think that’s a good idea,” Grossman said before the names of the donors were released. “I stand with the governor.”